1. to make the concluding section of a written work, speech, or presentation longer or more extended
The author decided to lengthen the conclusion to provide more detailed recommendations.
O autor decidiu prolongar a conclusão para fornecer recomendações mais detalhadas.
2. to extend the final remarks or summary of a discussion or argument
The professor asked students to lengthen the conclusion with additional evidence.
O professor pediu aos alunos que prolongassem a conclusão com evidências adicionais.